Retarded64: Son of a Bowser., more often simply called Son of a Bowser, is the 214th video made by SuperMarioGlitchy4, and the tenth episode in the Retarded64 series, and also the third episode of Season 5 of SM64 Bloopers.

One day, Mario starts randomly dancing while watching the news anchor report something, only for footage of Bowser to appear on the screen, stating that he will "Kidnap the princess" yet again. Mario then says that "He hates this channel," changing to a different one.

Afterwards Bowser was seen video taping himself saying these words, as he then says that "The audiences (especially Mario) would hate this and say, that this channel sucks." However before he continues, Bowser Jr. smashes the camera, saying to Bowser that he's hungry. Bowser becomes enraged and jumps over the side cliff, committing suicide.

We cut back to a while ago, where his grandma had called asking Bowser to take care of his son. He objects and says that he's busy kidnapping the princess. Bowser's Grandma didn't care and hung up, meaning that he has to take care of Bowser Jr, and cuts to a few situations where Bowser gets annoyed with Bowser Jr..

At the supermarket, Bowser gets very annoyed, with Jr. again demanding a drink from Bowser. Bowser gets really angry, asking Jr. if he wants to drink milk. His son refuses, resulting in Bowser screaming.

Bowser crashes into Princess Peach's Castle, where Luigi asks Bowser about movies but he says that he needed Mario, Sonic and Sonic.exe. Upstairs, Mario and SMG4 are shooting a video clip for YouTube. Bowser throws Jr. at Mario's hands making Sonic and Sonic.exe jump, requesting them to take care of the child until he comes back. On his way outside the castle, he celebrates as he was planning to go on a party. Bowser bumps into his grandma, who vows to kill her grandson if anything bad happens to Jr..

Bowser worries that Mario, Sonic and Sonic.exe are torturing Jr., so he runs back to the Castle, only to find that Mario, Sonic and Sonic.exe were just playing planes with him. SMG4 watches, surprised that neither one of them is tired yet. When Mario stops a second time, Jr. urges him to keep going, but Mario, finally exhausted, refuses. Jr. replies by farting on his face, Sonic is disgusted because of Jr's fart smell, enraging Mario and causing him to throw Jr. against the wall. Bowser responds by torching Mario. Bowser Jr. wanted his "uncle" Mario to play with him, after a few times of Bowser refusing, he sarcastically agrees and the three agree, too.

At the movie theater, Mario finds a poster of the old Super Mario Bros. movie, and gets mad about letting people make movies about him, while a Chain Chomp is looking at a poster with Wallace and Gromit on it, questioning what Gromit means. Bowser Jr. settles on Super Mario Twilight, shocking Mario and Bowser. Mario and Bowser both hate it, and Bowser starts vomiting everywhere. The only people who seem to enjoy it are Wario and Bowser Jr.. Later, Mario and Bowser are shown vomiting in the bathroom. When Bowser Jr finds his dad and asks to watch the sequel, Bowser curses at him. This makes Bowser Jr. run away wailing. Mario reminds Bowser that if something bad happens to Junior, Bowser's grandmother will punish him. They search all over to find Bowser Jr. Mario hangs some posters, to alert people to find him.

Later, Mario manages to find him, however, it was Roy he found. Mario and Bowser find Bowser Jr. with his "new cooler papa", Dr. Eggman, at Club Pingas, with Sonic and Sonic.exe there with him. Eggman explains to them that he never had a son before, but Mario doesn't care. Bowser threatens Eggman to give him back Bowser Jr., however Eggman loads and fires bullets from his machine gun in denial. Mario finds a Policeman and threatens him to get Eggman, however, this plan doesn't work as Eggman starts shooting the cop, causing him to run away screaming.

Bowser's grandmother calls him again, but Bowser hangs up the phone quickly, and then tries to save his son by leaping into Eggman, breaking through the inside of Pingas Club, where Sonic is in there, about to sing. Bowser calls Mario for help, and Mario comes just as Sonic was about to sing, Mario gets a mushroom, but he eats the wrong one and faints.

Sonic is singing "Thrilling! Is this love?" and at the end, he wishes to be a singer someday when he grows up, but Bowser wants Junior back. Sonic wants to throw a party, but Eggman stops it.

Dr. Eggman tries to shoot Bowser, but Bowser Jr. appears and violently whacks Eggman in the head with a frying pan, knocking him out. Bowser rewards his son by saying that he is proud of him. Sonic says that singing is fun, but he'll make sure he doesn't go to that club again. Bowser's grandmother arrives and punches Bowser, taking Bowser Jr. home with her. Bowser gets up and realizes Mario is still passed out from the mushroom, causing SMG4 and Sonic.exe to appear out of nowhere, asking how they should end the episode. Bowser Jr. comes and announces that they should watch Super Mario Twilight 2: The Sequel. They do, and Bowser pukes again while watching it, as the video ends.

SMG4 hit 300,000 subscribers two days before he uploaded this video, then it was probably already in production at the time, explaining the reason for which he didn't release any special blooper for celebrating his 300k. However, he made one the next week anyway: "Bad Star's Back!" .

(Bowser and Bowser Jr. and Sonic and Sonic.exe goes to watch the movie with Mario who is still unconscious, and after watching the scene where the Mario in the movie said that he's pregnant, Bowser throws up vomit once more)